Hazardous Weather Conditions
Current conditions at
Sparta, Sparta / Fort McCoy Airport (KCMY)
Lat: 43.96°NLon: 90.74°WElev: 837ft.
A Few Clouds
82°F
28°C
| Humidity | 49% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1015.0 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 26 May 10:55 am CDT |
Extended Forecast for
3 Miles ENE Ontario WI
Today

High: 86 °F
Sunny
Tonight

Low: 60 °F
Chance
T-stormsWednesday
High: 85 °F
Slight Chance
Showers then
Chance
T-stormsWednesday Night
Low: 53 °F
Slight Chance
T-storms then
Mostly ClearThursday

High: 76 °F
Sunny
Thursday Night

Low: 50 °F
Mostly Clear
Friday

High: 81 °F
Sunny
Friday Night

Low: 54 °F
Mostly Clear
Saturday

High: 80 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 86. Southwest wind 5 to 8 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Northwest wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms between 8pm and 9pm. Mostly clear, with a low around 53. Light northeast wind becoming east 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 76. East wind 3 to 7 mph.
Thursday Night
Mostly clear, with a low around 50. Calm wind.
Friday
Sunny, with a high near 81. Calm wind.
Friday Night
Mostly clear, with a low around 54. Calm wind.
Saturday
Sunny, with a high near 80. Calm wind becoming east around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 51. Light east wind.
Sunday
Sunny, with a high near 80. Calm wind becoming east around 5 mph.
Sunday Night
Mostly clear, with a low around 53. Calm wind.
Monday
Sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles ENE Ontario WI
43.73°N 90.55°W
43.73°N 90.55°W
10:51 am CDT May 26, 2026
11am CDT May 26, 2026-6pm CDT Jun 1, 2026



